Compare The Telephone Network And The Internet. What Are The Similarities? What Are The Differences?


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Iris Phillips Profile
Iris Phillips answered
The telephone network consists of a connection orientated circuit switch network. A call signal has to be used in order to establish a connection, or circuit, between two points before an exchange of information is possible. Once the connection has been made, switches reserve the relevant bandwidth for the full period of the call. As a result, the network path a call takes is fixed and, as a rule, remains constant throughout the time of calls made.

Advantages of the Circuit Switched Network

  • Controlled timing; bits move from A to B within a set time
  • Low delay times
  • Very little jitters, or variations in delay
  • Ideal for transmission of real-time signals, like video and voice
Disadvantages of the Circuit Switched Network

  • Each connection, or circuit, is separate
  • Circuit remains reserved even if no data is exchanged
  • While a circuit is reserved, it can not be used by others
The internet consists of a so-called packet switched, connectionless network. In other words, information packets can be exchanged without having to follow an established connection. Bandwidth is shared among users. One example of such a connectionless exchange is the NTP, or Network Time Protocol. A packet may be sent to the NTP from any computer without first having to establish a connection. The time server will then return the time.

Advantages of the Packet Switched Network

  • It is not necessary to establish connections
  • Resources are shared
  • If no data needs to be transmitted, no space is consumed
Disadvantages of the Packet Switched Network

  • Packets must have large headers to include addresses
  • Shared resources may result in delays due to queues
  • Unpredictable timing due to delays
  • Voice or video transmission is difficult due to delays
  • Packets may get lost during transmission
  • 'Best Efforts' protocol means no guarantee packages will be delivered.
xiao guguai Profile
xiao guguai answered
Similarities between internet and telephone network are we can use them to connect with others, differences are internet is more faster.

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